Lincoln Electric Welding Clamp Set - 8 Clamps for 16mm Fixture Holes, Secure Round and Square Tubing, Oversized Heads for Maximum Clamping in the Welding & Cutting Accessories department at Lowes.com
Inserta Clamps, Fit 16 mm Holes – Strong Hand Tools
Inserta Clamps, Fit 16 mm Holes – Strong Hand Tools
Welding Table Pro Accessory Pack • Texas Metal Works
Clamps & Accessories - WeldTables.com
$4 DIY Welding Table Clamps - YouTube
Pivoting T-Post Clamp, Fits 16 mm Holes – Strong Hand Tools